/**
 *  MIT License
 *
 *  Copyright (c) 2017 Richard Moore <me@ricmoo.com>
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included
 *  in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 *  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 *  DEALINGS IN THE SOFTWARE.
 */

#import "RoundRobinProvider.h"

@implementation RoundRobinProvider

- (NSArray<Provider*>*)orderedProviders {
    NSMutableArray *mutableArray = [[super orderedProviders] mutableCopy];
    for (NSUInteger i = 0; i < mutableArray.count - 1; i++) {
        NSUInteger exchangeIndex = arc4random_uniform((int)(mutableArray.count - i));
        [mutableArray exchangeObjectAtIndex:i withObjectAtIndex:exchangeIndex];
    }
    return mutableArray;
}

@end
